NURSERY MANAGEMENT OF Pinus greggii ENGELM. AND PLANT QUALITY
Seedling quality in a forest nursery refers to the physiological and morphological characteristics which allow plant survival and adaptation to field conditions after transplanting. In this study three cultural practices were compared in independent experiments, during five months, in Pinus greggii Engelm seedlings. Each experiment had 3 treatments with 10 replications, randomly allocated. The experiments were: root pruning (0, 25 and 50 % of root length), top pruning (0, 25 and 50 % of the leaf zone), and preconditioning by edaphic drought stress treatments (irrigation each 3, 14 or 28 days). Root pruning promoted root growth without significantly affecting the stem growth rates in height and diameter, or the biomass accumulation of the shoot or the root. Stem pruning induced significant gains in dry weight, up to 2.5 times in the shoot and up to 3.0 times in the root system, as well as the formation of new roots and branches. Edaphic drought stress reduced plant growth in all the observed parameters. Therefore, stem pruning of 50 % may be recommended as an effective nursery technique to improve seedling quality in this species
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Colegio de Postgraduados
1999
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oai:ojs.pkp.sfu.ca:article16282020-05-14T14:26:25Z NURSERY MANAGEMENT OF Pinus greggii ENGELM. AND PLANT QUALITY EL MANEJO EN VIVERO DE Pinus greggii ENGELM. Y LA CALIDAD DE PLANTA Cetina-Alcalá, Víctor M. González-Hernández, Victor A. Vargas-Hernández, J. Jesús Pinus greggii. root pruning stem pruning edaphic drought stress coniferous seedlings Pinus greggii. poda de raíz poda de tallo sequía plántulas de coníferas Seedling quality in a forest nursery refers to the physiological and morphological characteristics which allow plant survival and adaptation to field conditions after transplanting. In this study three cultural practices were compared in independent experiments, during five months, in Pinus greggii Engelm seedlings. Each experiment had 3 treatments with 10 replications, randomly allocated. The experiments were: root pruning (0, 25 and 50 % of root length), top pruning (0, 25 and 50 % of the leaf zone), and preconditioning by edaphic drought stress treatments (irrigation each 3, 14 or 28 days). Root pruning promoted root growth without significantly affecting the stem growth rates in height and diameter, or the biomass accumulation of the shoot or the root. Stem pruning induced significant gains in dry weight, up to 2.5 times in the shoot and up to 3.0 times in the root system, as well as the formation of new roots and branches. Edaphic drought stress reduced plant growth in all the observed parameters. Therefore, stem pruning of 50 % may be recommended as an effective nursery technique to improve seedling quality in this species La calidad de planta producida en vivero forestal se refiere a las características fisiológicas y morfológicas que le permiten sobrevivir y adaptarse a las condiciones de campo después del trasplante. En este estudio se compararon, en experimentos independientes, durante cinco meses, tres tipos de manejo de planta de Pinus greggii Engelm. en vivero. Cada experimento involucró 3 tratamientos con 10 repeticiones en un diseño completamente al azar. Los experimentos consistieron en poda de raíz (0, 25 y 50 % de su longitud), poda del tallo (0, 25 y 50 % de la parte con follaje), y pre-acondicionamiento mediante sequía edáfica (riego cada 3, 14 ó 28 días). La poda de raíz promovió la formación de raíces laterales sin afectar significativamente las tasas de crecimiento en altura y diámetro del tallo, ni la acumulación de biomasa en la parte aérea o en la propia raíz. La poda del tallo indujo aumentos en el peso seco de hasta 2.5 veces en la parte aérea y de casi 3.0 veces en la raíz, así como la brotación de raíces y ramas nuevas. La sequía edáfica redujo el crecimiento en todas las expresiones evaluadas. Por tanto, para su manejo en vivero se recomienda la poda del tallo a la mitad para aumentar la calidad de planta en esta especie. Colegio de Postgraduados 1999-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://www.agrociencia-colpos.org/index.php/agrociencia/article/view/1628 Agrociencia; Vol. 33 No. 4 (1999): 1999-oct-dic; 423-430 Agrociencia; Vol. 33 Núm. 4 (1999): 1999-oct-dic; 423-430 2521-9766 1405-3195 spa https://www.agrociencia-colpos.org/index.php/agrociencia/article/view/1628/1628 |
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America del Norte |
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Departamento de documentación y biblioteca de COLPOS |
| language |
spa |
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Digital |
| author |
Cetina-Alcalá, Víctor M. González-Hernández, Victor A. Vargas-Hernández, J. Jesús |
| spellingShingle |
Cetina-Alcalá, Víctor M. González-Hernández, Victor A. Vargas-Hernández, J. Jesús NURSERY MANAGEMENT OF Pinus greggii ENGELM. AND PLANT QUALITY |
| author_facet |
Cetina-Alcalá, Víctor M. González-Hernández, Victor A. Vargas-Hernández, J. Jesús |
| author_sort |
Cetina-Alcalá, Víctor M. |
| title |
NURSERY MANAGEMENT OF Pinus greggii ENGELM. AND PLANT QUALITY |
| title_short |
NURSERY MANAGEMENT OF Pinus greggii ENGELM. AND PLANT QUALITY |
| title_full |
NURSERY MANAGEMENT OF Pinus greggii ENGELM. AND PLANT QUALITY |
| title_fullStr |
NURSERY MANAGEMENT OF Pinus greggii ENGELM. AND PLANT QUALITY |
| title_full_unstemmed |
NURSERY MANAGEMENT OF Pinus greggii ENGELM. AND PLANT QUALITY |
| title_sort |
nursery management of pinus greggii engelm. and plant quality |
| description |
Seedling quality in a forest nursery refers to the physiological and morphological characteristics which allow plant survival and adaptation to field conditions after
transplanting. In this study three cultural practices were compared in independent experiments, during five months, in Pinus greggii Engelm seedlings. Each experiment had 3 treatments with 10
replications, randomly allocated. The experiments were: root pruning (0, 25 and 50 % of root length), top pruning (0, 25 and 50 % of the leaf zone), and preconditioning by edaphic drought
stress treatments (irrigation each 3, 14 or 28 days). Root pruning promoted root growth without significantly affecting the stem growth rates in height and diameter, or the biomass
accumulation of the shoot or the root. Stem pruning induced significant gains in dry weight, up to 2.5 times in the shoot and up to 3.0 times in the root system, as well as the formation of
new roots and branches. Edaphic drought stress reduced plant growth in all the observed parameters. Therefore, stem pruning of 50 % may be recommended as an effective nursery technique to
improve seedling quality in this species |
| publisher |
Colegio de Postgraduados |
| publishDate |
1999 |
| url |
https://www.agrociencia-colpos.org/index.php/agrociencia/article/view/1628 |
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